This document provides information about hydrogen fuel cells. It discusses the history of fuel cells from their conception in 1839 to current applications. It then describes how a hydrogen fuel cell works, including the anode reaction, transport of protons through the electrolyte, and cathode reaction. Applications mentioned include transportation, stationary power stations, telecommunications, micro-grid networks. Advantages include being renewable and producing only water emissions, while disadvantages include hydrogen being expensive to produce and store and fuel cells requiring expensive platinum catalysts. The document concludes by discussing hydrogen fuel cell vehicles and trials of India's first prototype hydrogen fuel cell car.